Internal armor for pneumatic tires.



A. NIELSEN.

NAL ARMOR FOR PNEUMATIC TIRES.

APPLICATION FILED FEB.7,l31b

iNTLR Patented July 25, 1916.

A HORNE V8 IN I/E/V TOR Jindmw M5670 I'm/er 51/60.

AND REW NIELSEN OF BBIGHAM, UTAH.

INTERNAL ARMOR FOR IPNEUMATIC TIRES;

,- Specification of Letters Patent.

Patented July 25, 1916. 1

i'i ncanim filed February 7. 1916. Serial No. 76,651.

To alfiioh'qm it may ("ohm-r11 Bent known that l, A xnuew Nll-ILSF. acitizen-of the'l-nited States, and a resident of Brighanrcity, in thecounty of lioxclder and Stfate of Utah, have invented a new andimprove-dInternal Armor for Pneumatic TlIT-SjfOf' which the following isa full, clear, and exacttdescription.

" 'Thi's-anvennon relates to armor for pneumatic tires, and has to dealmore particularly with armor of that t vpe which is adapted to beinserted between the inner tube'and shoe of the the so as to prevent thepuncture of the inner tube.

The invention has .for its general objects to improve the constructionof armor of this type so as to be reliable and eliicient in use,comparatively inexpensive to manufacture. and so designed as to notimpair the resiliencyof the tire.

A more specific object of the invention is.

the provision of an armor which includes a plurality of hingedlyconnected thin metal plates which efi ectivel v cover the majorportionof the inner tube so as to prevent nails, glass or other objects frompuncturing the inner tube if they should cutthrough the shoe ofthe tire,the plates being so disposed and connected together that ampleflexibility is provided, and furthermore-. the plates are covered withcanvas or equivalent fabric so as to prevent wear on the shoe or airtube. Still'anotherobject of the invention is to provide 'a novel formof detachable hinged connection between the various platesthat lie underthe tread portion-of the shoe sq that these plates can be easily andquicklyassembled. And furthermore, the armor vwhich includes the..middle and lateral hingedly connected plates is pro vided with pocketedplates into which the free side edges of, the-lateral plates slide,whereby; the armor keeps itslornrandj'position when'the inner tube ldeflated, and whereby the side edges of the lateral plates are preventedfrom wearing away "thc tire shoe. H "f 'I' :iVt'ith such objects inview, and' othet's whichwill'appear as the descriptionlpro ceeds, theinvention COIUPIlS'GS\zlllollS novel features ofeonstructionandarrangcn'ient of parts which will be setfortlrwith particularity ;in thef l owing description and claims appended hcreto;

In the; accompanying drawings series around the tread portion,

illustrate oneembodiment of the invention and, wherein similarcharacters of reference indicate corresponding parts in all the v 1ews.Figu1c l is a fragmentary perspective view with portions broken awav soas to'il lustrate the details of construction; Fig. :2 is a transverssection of the tire with the armor therein; Fig. 3 is a view of aportion of the armor stretched out tlat with the outer canvas coverremoved: ig. 4 is a detail sectional view on the line P3 Fig. i; Fig.Sis ailetail view showing the armor riveted to the tire shoe: Fig. 6 isa perspective view of one of the series of middle plates of the armor;-Fig. T is a plan view of a modified form of the protector flattened outlike Fig. and Figs. 8 and 9 are detail sectional views respectively onthelines b 8 and f)9. Fig. 7.

The armor may be an endless continuous structure and is adapted to havea circular cross-sectional contour when placed in the shoe of a tire, soas to completely surround the inner air tube. V

Referring to the drawing, A designates an ordinary tire shoe, B theinner air tube and G the internal armor for preventing puncturin of theinner tube.

The armor comprises an innerand outer covering of canvas 1 and 2 orequivalent fabric, these coverings being of strip form of such-width asto entirely transversely "cover the inner tube, the edges ofthecoverings meeting at 3 near the rim or base portion of the tire.Interposed between the canvas coverings l and '2 are middle plates l,

which are arcuate in longitudinal transverse planes of the tire. Theseplates are arranged end to end and formla continuous and these middleplates e are flanked by l ral plates 5 which are in transversedimensions somewhat narrowerthan the middleplates-l.- IIachmiddle plateihas a pintlc: (iat one end andflin'tles 7 'at opposite sides. Thesetorinci'l as to conform to tlie ma ginal o llllt olf the plate 4, and ths '-.-'-sha ped w;

struiiturc i.is fa stencd to V the. plate 4 by the turedears Qtorholding the wire. The.

lot) pintles 'arej foimed by a U-sliap,c,d wire so 'l'attc r. havingbentback lugs S to form aperslfl5 that adjacent plates or linkcan beconnecti thei ewith; Ea li fl t i at theilendops posite from the pintlchas a turned-back lug or hook 10 whereby such hook can be engaged withthe pintle 6 of the adjacent plate 4, thus hingedly connecting theplates together. ,The lateral plates have intermediate their endshook-shaped lugs 11 for engaging the pintles G.

By thus hingedly connecting the plates 4 together and hingedlyconnecting the plates 5 to the plates 1-, ample flexibility is providedso as not-to impair the resiliency of the tire.

l he plates l have outwardly projecting ears 12 at opposite sides of thehook 10 so that these cars will overlap the contiguous end of anadjacent plate 4. In other words, overlapping joints are provided sothat there is no danger of: the inner tire being punctured at suchjoints. The ends of the plates 5 overlap each other at for the samepurpose. The combined width of the armor formed bythe plates 1 and sucuthat approximately halfof the inner tube. is covered, as shown in Fig.2-. 11 are open far enough. to enable them to be snapped over themen'ibers 6 and 7 of the pintle in assembling the parts.

The metal part ofthe armor formed by the plates-"or links 4v and is heldin place between the canvas coverings 1 andZ by rivets 14 which passthrough thecenters of which latter plates are relatively stationary.

1 the plates 4 and shoe.

Thus the free edges of the plates 5 do not rub againstthe outer canvascovering or shoe, but they have contact with the metal plates 15. Thesemetal plates .have their outer portions secured by rivets 17 to theinner covering-1, andif desired the inner portions of the under half ofeach plate 15 can be secured by arivet 18 with the said inner covering.

If desired the armor can be separable from the tire shoe, but it willremain firmly in position, especially when-the inner tube is inflated;If desired, however, the armor can be permanently fastened to the shoe,as for instance,'by the "use of rivets 19 which pass throughthe outerhalves of the plates 15 through the outer canvas covering and the shoeA, and rivets 19 which pass through Over'each plate 4 is a rectangularpiece of. canvas 20 which serves as a' filler between the lugs S, 10and. 11, so as to provide an even bearing surface for the outer covering2.

The hooks 10 and As shown in Figs. 7,8 and 9, pieces of leather orrawhide are inserted between. the metal parts of the protector so as COreduce heating from frictioni .Thus doubled strips of leather 1 aredisposedunder the hooks-1G; pieces of leather 1" are fastened to theends of the plates 5 to lie between the overlapping portions of adjacentplates, and pieces of leather 1 and 1 line the plates 15 so that theplates 5 will'slide in and out between the leather pieces 1 and 1 asshown in Fig. 9. By hingedly connecting the plates 5 with-the plates 1and having the'plates 5 slide back and forth in the leather-linedsockets between the plates 15,'a maximum flexibility is provided toinsure easy running.

From the foregoing description taken in connection with the.accompanying drawing, the advantages of the construction and method ofoperation will be readily understood by those skilled in the art towhich the invention appertains, and while I have described theprinciple-cl operation, togetherwith the device which I now consider tobe the best embodiment thereof, I desireto have it understood that thedevice shown is merely illustrative and that such changes may bemade-when desired as fall within the scope of theappended' claims YHaving thus described Y my invention, I claim asnew and desire tosecureby Letters Patent: i

1. An internalarmor for tires, comprising a series of middle plates, awire extend: ing around three sides of each plate and fastenedthereto'to'forin pintles, a hoolgon each plate for ehgaging the wireoftlfe next plate, and side plates having hookscng-aging the-wires of themiddle plates, and a flexible.

covering in the form of strips covering all the plates. 7 2. An internalarmor for tires, comprising An internal armor .for tires, comprising aseries of middle plates, a wire extending around three sides-of eachplate and 'fastened thereto to form pintles, a hook on each plate forengaging the wire of the nest plate, and sideplates having hookseiwagiiig the wires of the middle plates, a flexible co"- ering in theform of strips covering all the plates, and fabric fillers overlyingeach "filiadlo plate and lying within th margin of each plate and tinle-i the covering. wherebv the covering will have a substantially smoothname to this specification in the presence of support, in combinationwith a tire shoe; and two subscribing Witnesses.

pocketed elements fastened in the tire shoe L to receive the outer edgesof the side plates, ANDRLW NIELSEN 5 said pocketed elements being in theform of Vitnesses:

pairs of plates arranged end to end. J. C. JENSEN,

In testimony whereof I have signed my HENRY M. FIGGINS.

